Amorphous Metal/Oxide Nanolaminate

Cowell, E. William; Knutson, Christopher C.; Wager, John F.; Keszler, Douglas A.

doi:10.1021/am100283m

Cited by 9 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The image reveals that the bilayer composition profile is faithfully repeated through the structure. The same high level of bilayer material repeatability is observed in ZrCuAlNi/AlPO laminates, as has been previously reported 14. Existing examples of dispersion engineering at optical frequencies via amorphous materials (glass lenses) have been successful, in part, because of the ease and reproducibility of amorphous material systems.…”

Section: Resultssupporting

confidence: 81%

“…3, have been deposited via DC magnetron sputtering as ultra‐smooth, homogenous films with a minimum thickness of 2 nm. Oxidation of an amorphous metal film deposited via sputtering occurs at interfaces above and below the film 14. Below the film, the energy of sputter deposition supplies the driving force of oxidation, creating the sputter oxide shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…In this contribution, we address dispersion engineering through fabrication and study of new nanolaminates containing thin amorphous‐metal and solution‐processed‐oxide films. We have recently described the materials properties and film interfacial chemistry of these highly regular laminated structures 14. The smooth and pristine interfaces between the amorphous metal and oxide have also enabled the realization of high‐performance metal–insulator–metal diodes 15.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Engineering anisotropic dielectric response through amorphous laminate structures

Cowell

Knutson

Kuhta

et al. 2012

Physica Status Solidi (a)

Self Cite

View full text Add to dashboard Cite

Nanolaminates built from ultra-thin, ultra-smooth films of amorphous metals, and solution-processed oxides represent a new platform for dispersion engineering. Materials exhibiting anisotropic elliptical dispersion and hyperbolic dispersion with positive refraction are realized through choice of amorphous metal and laminate design. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), polarized reflectance measurements, and effective medium theory are combined to demonstrate the precision and predictability of the fabrication techniques and optical properties from ultra-violet to infra-red frequencies.Engineering anisotropic dielectric response through amorphous laminate structures.

show abstract

Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Engineering anisotropic dielectric response through amorphous laminate structures

Cowell

Knutson

Kuhta

et al. 2012

Physica Status Solidi (a)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Nanoscale amorphous materials are important noncrystalline solids and are new type of advanced materials [18][19][20][21][22][23][24][25][26][27][28][29][30]. They have larger specific surface area than their bulk counterparts and therefore can show better performance and be applicable in more fields.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the shape of amorphous nanomaterials: recent developments and applications

2015

View full text Add to dashboard Cite

Nanoscale amorphous materials are very important member of the non-crystalline solids family and have emerged as a new category of advanced materials. However, morphological control of amorphous nanomaterials is very difficult because of the atomic isotropy of their internal structures. In this review, we introduce some emerging innovative methods to fabricate well-defined, regular-shaped amorphous nanomaterials. We then highlight some examples to evaluate the use of these amorphous materials in electrodes, and their optical response. There is still plenty of room to explore the amorphous world. As researchers continue to advance the scientific tools that underpin the concepts related to "amorphous", additional applications of these materials will emerge. Their controlled synthesis will undoubtedly attain new heights in the discipline of nanomaterials, and allow nanoscale amorphous materials to become more sophisticated, diverse, and mainstream.

show abstract

“…6 Recently, we have extended the study of AMTFs to a new platform for building metal−insulator−metal (MIM) devices 7 and nanolaminate structures with engineered dielectric response. 8,9 Additionally, the availability of high-quality interfaces in MIM devices using AMTF lower electrodes has enabled the development of a new method for characterization of energy barriers in tunneling diodes. 10 Our goal is to use the mechanical properties of amorphous metals, e.g., high elasticity and surface smoothness, to create highly reliable tunneling electronic devices and ultimately realize a new avenue for making flexible electronics.…”

Section: Introductionmentioning

confidence: 99%

Effects of Oxygen Incorporation on the Physical Properties of Amorphous Metal Thin Films

et al. 2014

Self Cite

View full text Add to dashboard Cite

Incorporated oxygen is known to affect amorphous metal thin film (AMTF) mechanical properties, but comparatively little is known about how it affects their structural characteristics and electrical transport properties. In this study, AMTFs are produced by using sputter deposition. Chemical composition, average interatomic spacing, surface roughness, and electrical transport properties are examined using electron probe microanalysis (EPMA), X-ray diffraction (XRD), atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and variable-temperature resistivity. ZrCuAlNi amorphous metal thin films exhibit a temperature dependence that is characteristic of d-electron conduction and electrical resistivity that increases substantially with increasing oxygen content. TiAl and ZrCuB are found to be spelectron conductors with electrical resistivity that decreases with increasing oxygen content. The surface roughness of all films increases with oxygen content, whereas interatomic spacing is relatively insensitive to incorporated oxygen content. The relationships among amorphous metal composition, structural characteristics, and electrical transport properties are discussed.

show abstract

Amorphous Metal/Oxide Nanolaminate

Cited by 9 publications

References 14 publications

Engineering anisotropic dielectric response through amorphous laminate structures

Engineering anisotropic dielectric response through amorphous laminate structures

Tailoring the shape of amorphous nanomaterials: recent developments and applications

Effects of Oxygen Incorporation on the Physical Properties of Amorphous Metal Thin Films

Contact Info

Product

Resources

About